Question: Consider the following.

(a) Calculate the estimate for the standard error of difference between two independent means for s12 = 19, s22 = 15, n1 = 16, and n2 = 26. (Give your answer correct to two decimal places.)

(b) Calculate the estimate for the standard error of difference between two independent means for s12 = 0.047, s22 = 0.1, n1 = 12, and n2 = 10. (Give your answer correct to four decimal places.)

(c) Calculate the estimate for the standard error of difference between two independent means for s1 = 2.5, s2 = 6.3, n1 = 28, and n2 = 17. (Give your answer correct to two decimal places.)